1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 #ifndef __ASYNCREQOBSERVER_H

    20 #define __ASYNCREQOBSERVER_H

    21 

    22 

    23 /**

    24  * Structure for storing transaction id and associated active object.

    25 */

    26 struct TAsyncRequestInfo

    27 	{

    28 

    29     /**

    30      * TransactionId

    31     */

    32 	TInt32 iTransactionId;

    33 

    34     /**

    35      * Active object pointer

    36     */

    37 	CCalendarASyncRequest* iAsyncObj;

    38 	};	

    39 	

    40 

    41 /**

    42  *  Class used to get callback notification from async request module 

    43  *	about completion of request. 

    44 */

    45 class CAsyncRequestObserver : public CBase

    46 	{

    47 	public:

    48 	

    49 		/**

    50 		 * Two-Phase Constructor

    51 		*/ 

    52 		static CAsyncRequestObserver* NewL();

    53 		

    54 		/**

    55 		 * Destructor

    56 		*/ 

    57 		~CAsyncRequestObserver();

    58 		

    59 		/**

    60 		   * Notifies about the completeion of an async request

    61 		   * @param aTransactionId TransactionId of Asynchronous request object

    62 		   * @return void

    63 	  	*/

    64 		void RequestComplete( const TInt32 aTransactionId );

    65 

    66 		/**

    67 		 * Cancels asynchronous request

    68 		 * @param aTransactionId     asynchronous transaction id

    69 		 * @param aResult        error code

    70 		*/ 				

    71 		TInt Cancel( const TInt32 aTransectionID );

    72 		

    73 		/**

    74 		 * Adds asynchronous request object

    75 		 * @param aTransactionId Transcation Id os Async object

    76 		 * @param aAsyncObj  Async object

    77 		*/ 

    78 		void AddAsyncObjL( const TInt32 aTransactionId, CCalendarASyncRequest* aAsyncObj );

    79 

    80 	private:

    81 	   /**

    82 		 * Deletes all the Asynchronous request objects

    83 		*/

    84 		void DeleteAsyncObjects();

    85 

    86 	

    87 	private:

    88 

    89 		/**

    90 		 * Contains handles of all asynchronous requests

    91 	  	*/ 

    92 		RArray<TAsyncRequestInfo> iAsyncObjArray;

    93 		

    94 	};

    95 	

    96 

    97 

    98 #endif __ASYNCREQOBSERVER_H